Abstract: A refrigerant flow rate adjustment device and a system using the same include a refrigerant provided at a quantitative flow rate to a heat exchanger such that the occurrence of a liquid refrigerant is reduced at an outlet end of an evaporator. The refrigerant flow rate adjustment device and system prevent the occurrence of the liquid refrigerant at the outlet end of the heat exchanger, prevent an increase in load, and prevent a lubrication defect of a compressor.

Abstract: A vibration damping device for a vehicle includes a base connected to an engine, an inertial mass, including at least a portion that includes a permanent magnet, movably mounted over the base, an actuator including an electromagnet fixedly mounted on the base to vibrate the inertial mass based on attractive and repulsive forces which alternately act between the inertial mass and the electromagnet, and a controller that regulates a current, which is applied to the electromagnet, such that vibration of the engine is dampened by vibration of the inertial mass.

Abstract: A damper pulley for a crankshaft includes a hub mounted on one end of the crankshaft, a rim connected to the hub, an oil seal mounted on an outer surface of the hub, and a wear-resistant insert member integrally mounted on the hub and making contact with the oil seal.

Abstract: A damper pulley for a crankshaft includes a hub mounted on one end of the crankshaft, a rim connected to the hub, an oil seal mounted on an outer surface of the hub, and a wear-resistant insert member integrally mounted on the hub and making contact with the oil seal.

Abstract: A crankshaft having a balance weight, the crankshaft a crank pin eccentric to a rotation axis of the crankshaft, a connecting rod connecting the crank pin and a piston, and a balance weight disposed to be opposite to the crank pin in the crankshaft, wherein the balance weight has radius which is a distance between the rotation axis of a crankshaft and an exterior circumferential surface of the balance weight, and wherein the radius of the balance weight is formed differently depending on a rotation direction of the balance weight.

Abstract: A damper pulley assembly for a vehicle is provided and includes a crank shaft of an engine of the vehicle, a hub that is coupled to the crank shaft and configured to be rotated, a pulley that is coupled to an exterior surface of the hub and configured to be integrally rotated with the hub and an oil seal that is disposed between the hub and an interior of a cylinder block configured to prevent engine oil leakage in the cylinder block. The hub has an abrasion prevention component formed on an exterior circumference surface on which the oil seal is disposed, and the abrasion prevention component prevents separation of the oil seal. Thus, a friction coefficient of a portion where a contact with the oil seal is concentrated is reduced and abrasion of a shaft is reduced by applying an anti-abrasion coating to improve hardness.

Abstract: A vibration damping device for a vehicle includes a base connected to an engine, an inertial mass, including at least a portion that includes a permanent magnet, movably mounted over the base, an actuator including an electromagnet fixedly mounted on the base to vibrate the inertial mass based on attractive and repulsive forces which alternately act between the inertial mass and the electromagnet, and a controller that regulates a current, which is applied to the electromagnet, such that vibration of the engine is dampened by vibration of the inertial mass.

Abstract: A display apparatus is provided. The display apparatus includes a display panel, a substrate, and a bottom chassis. The substrate is provided with light sources to emit light towards the display panel. The substrate includes a fixing hole formed between the light sources. The substrate is coupled to the bottom chassis. The bottom chassis includes a fixing protrusion to be coupled to the fixing hole. The fixing protrusion is formed with the bottom chassis to have a detachment prevention structure so that the fixing protrusion is prevented from being detached from the fixing hole.

Abstract: A crankshaft having a balance weight, the crankshaft a crank pin eccentric to a rotation axis of the crankshaft, a connecting rod connecting the crank pin and a piston, and a balance weight disposed to be opposite to the crank pin in the crankshaft, wherein the balance weight has radius which is a distance between the rotation axis of a crankshaft and an exterior circumferential surface of the balance weight, and wherein the radius of the balance weight is formed differently depending on a rotation direction of the balance weight.

Abstract: A damper pulley assembly for a vehicle is provided and includes a crank shaft of an engine of the vehicle, a hub that is coupled to the crank shaft and configured to be rotated, a pulley that is coupled to an exterior surface of the hub and configured to be integrally rotated with the hub and an oil seal that is disposed between the hub and an interior of a cylinder block configured to prevent engine oil leakage in the cylinder block. The hub has an abrasion prevention component formed on an exterior circumference surface on which the oil seal is disposed, and the abrasion prevention component prevents separation of the oil seal. Thus, a friction coefficient of a portion where a contact with the oil seal is concentrated is reduced and abrasion of a shaft is reduced by applying an anti-abrasion coating to improve hardness.

Abstract: The present invention relates to a casting product and a method of manufacturing the casting product. The manufacturing method of the casting product includes: manufacturing a salt core including a heterogeneous material part; manufacturing the casting product by inserting the salt core including the heterogeneous material part into a casting mold; injecting a molten metal into the casting mold; and removing the salt core from the casting product.

Abstract: A cylinder block including a water jacket for maintaining an engine at a proper temperature during operation thereof may include a plurality of cylinders formed within the cylinder block so that a number of pistons are respectively inserted into the cylinders, and a heat sink formed in the water jacket provided to enclose side surfaces of the plural cylinders.

Abstract: A display apparatus is provided. The display apparatus includes a display panel, a substrate, and a bottom chassis. The substrate is provided with light sources to emit light towards the display panel. The substrate includes a fixing hole formed between the light sources. The substrate is coupled to the bottom chassis. The bottom chassis includes a fixing protrusion to be coupled to the fixing hole. The fixing protrusion is formed with the bottom chassis to have a detachment prevention structure so that the fixing protrusion is prevented from being detached from the fixing hole.

Abstract: The present invention relates to a casting product and a method of manufacturing the casting product. The manufacturing method of the casting product includes: manufacturing a salt core including a heterogeneous material part; manufacturing the casting product by inserting the salt core including the heterogeneous material part into a casting mold; injecting a molten metal into the casting mold; and removing the salt core from the casting product.

Abstract: A damper pulley assembly of vehicle may include a crankshaft rotating by a power transmitted from an engine, a hub including a hub body formed cylindrical hollow shape so that the crankshaft is inserted and a hub ring protruded outside of the hub body, a pulley coupled outside of the hub ring, a combining ring formed cylindrical hollow shape so as to be coupled outside of the hub body, and an oil seal provided between outside of the combining ring and inside of the cylinder block and preventing leakage of engine oil of the cylinder block, wherein the hub is made of low density material compared to the pulley, and the combining ring is made of high stiffness compared to the hub.

Abstract: A cylinder block including a water jacket for maintaining an engine at a proper temperature during operation thereof may include a plurality of cylinders formed within the cylinder block so that a number of pistons are respectively inserted into the cylinders, and a heat sink formed in the water jacket provided to enclose side surfaces of the plural cylinders.

Abstract: A damper pulley may include a damper hub part coupled to a crank shaft rotated upon receiving rotary driving force of an engine such that the damper hub part is integrally rotated with the crank shaft and a damper pulley part coupled to the damper hub part such that the damper pulley part is integrally rotated with the damper hub part. A power transmission unit is connected to the damper pulley part. The damper hub part may be made of a material comprising forged aluminum and the damper pulley part may be made of a material comprising a metal. The damper pulley has a reduced overall weight, and vibrations and impact can be reduced to enhance ride comfort.

Abstract: An inspection system includes: an automated optical inspection device detecting a defect of an inspection object by using a light; a scanning electron microscope device for inspecting the defect of the inspection object by using an electron beam and including a vacuum chamber; a stage positioned below and spaced from the scanning electron microscope device and supporting the inspection object; and a transferring device connected to the scanning electron microscope chamber and the automated optical inspection and transferring the scanning electron microscope device and the automated optical inspection device to positions over the stage. Air is in a gap between the chamber and the inspection object. Accordingly, an inspection object of a large size may be inspected for analysis without damage to the inspection object.

Abstract: A damper pulley assembly of vehicle may include a crankshaft rotating by a power transmitted from an engine, a hub including a hub body formed cylindrical hollow shape so that the crankshaft is inserted and a hub ring protruded outside of the hub body, a pulley coupled outside of the hub ring, a combining ring formed cylindrical hollow shape so as to be coupled outside of the hub body, and an oil seal provided between outside of the combining ring and inside of the cylinder block and preventing leakage of engine oil of the cylinder block, wherein the hub is made of low density material compared to the pulley, and the combining ring is made of high stiffness compared to the hub.

Abstract: Disclosed is a balance adjustment device of a rotating body including a body configured and structured to rotate based on a rotating axis; a fixation protrusion groove formed on the exterior circumference thereof; a balance ring, wherein a fixation protrusion is formed on an interior circumference of the balance ring that corresponds to the exterior circumference of the rotating body to be inserted into the fixation protrusion groove; and a balance weight formed on the balance ring to adjust the rotating balance.